A climate-based analysis of photosynthetically active radiation availability in large-scale greenhouses across China

Wang, Cong; Du, Jiangtao; Liu, Yu; Chow, D. H.

doi:10.1016/j.jclepro.2021.127901

Cited by 14 publications

(5 citation statements)

References 67 publications

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“…PAR was computed as the sum of photosynthetically photon flux density (PPFD) between 400 and 700 nm. PPFD at each wavelength was computed following Wang et al (2021):

PPFD = \frac{Irr \times lambda}{Na \times h \times c}

where Irr is the irradiance, lambda is the wavelength, Na is the Avogadro constant, h is the Planck constant, and c is the speed of light.…”

Section: Methodsmentioning

confidence: 99%

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A genome‐wide analysis suggests pleiotropic effects of Green Revolution genes on shade avoidance in wheat

Colombo

Montazeaud

Viader

et al. 2022

Evolutionary Applications

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A classic example of phenotypic plasticity in plants is the suit of phenotypic responses induced by a change in the ratio of red to far‐red light (R∶FR) as a result of shading, also known as the shade avoidance syndrome (SAS). While the adaptive consequences of this syndrome have been extensively discussed in natural ecosystems, how SAS varies within crop populations and how SAS evolved during crop domestication and breeding remain poorly known. In this study, we grew a panel of 180 durum wheat (Triticum turgidum ssp. durum) genotypes spanning diversity from wild, early domesticated, and elite genetic compartments under two light treatments: low R:FR light (shaded treatment) and high R:FR light (unshaded treatment). We first quantified the genetic variability of SAS, here measured as a change in plant height at the seedling stage. We then dissected the genetic basis of this variation through genome‐wide association mapping. Genotypes grown in shaded conditions were taller than those grown under unshaded conditions. Interaction between light quality and genotype did not affect plant height. We found six QTLs affecting plant height. Three significantly interacted with light quality among which the well‐known Rht1 gene introgressed in elite germplasm during the Green Revolution. Interestingly at three loci, short genotypes systematically expressed reduced SAS, suggesting a positive genetic correlation between plant height and plant height plasticity. Overall, our study sheds light on the evolutionary history of crops and illustrates the relevance of genetic approaches to tackle agricultural challenges.

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“…PAR was computed as the sum of photosynthetically photon flux density (PPFD) between 400 and 700 nm. PPFD at each wavelength was computed following Wang et al (2021):

PPFD = \frac{Irr \times lambda}{Na \times h \times c}

where Irr is the irradiance, lambda is the wavelength, Na is the Avogadro constant, h is the Planck constant, and c is the speed of light.…”

Section: Methodsmentioning

confidence: 99%

“…PAR was computed as the sum of photosynthetically photon flux density (PPFD) between 400 and 700 nm. PPFD at each wavelength was computed following Wang et al (2021):…”

Section: Growth Conditions and Phenotypingmentioning

confidence: 99%

A genome‐wide analysis suggests pleiotropic effects of Green Revolution genes on shade avoidance in wheat

Colombo

Montazeaud

Viader

et al. 2022

Evolutionary Applications

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“…Controlling the internal parameters of the greenhouse is significantly effective in energy consumption. Lighting control has become a critical issue for high energy efficiency and plant productivity in greenhouse cultivation, particularly with the enhanced use of supplementary lighting [148,149]. Plant growth in controlled greenhouse conditions is influenced by three parameters of light, including light spectrum, light intensity, and duration of light exposure [150,151].…”

Section: Lightmentioning

confidence: 99%

Assessing the Physical and Environmental Aspects of Greenhouse Cultivation: A Comprehensive Review of Conventional and Hydroponic Methods

Farvardin,

Taki,

Gorjian

et al. 2024

Sustainability

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Population growth has presented several challenges in terms of energy, food supply, and environmental protection. The agricultural industry plays a crucial role in addressing these challenges by implementing innovative technologies that optimize resource utilization, minimize environmental impacts, and increase food production. Among these technologies, greenhouse cultivation systems have garnered substantial attention due to their ability to create a controlled environment for crop growth, resulting in higher yields, improved quality, and reduced water usage. However, it is important to note that greenhouse cultivation technology is also one of the most energy-intensive sectors within agriculture, contributing significantly to global energy consumption. Despite this, the technology remains popular due to its efficiency in optimizing inputs, increasing production per unit area, enabling year-round crop production, and managing unfavorable environmental conditions such as pests, diseases, and extreme weather events. There are two primary greenhouse cultivation systems: conventional and hydroponic methods. Each system has distinct similarities and differences regarding energy consumption, crop production per unit area, and environmental impacts. In this study, we compare conventional and hydroponic greenhouse cultivation, analyzing various inputs such as temperature, light, and energy consumption. Our findings indicate that hydroponic systems, equipped with advanced control equipment and growth mediums, create optimal conditions for plant growth. Also, hydroponics offered 11 ± 1.7 times higher yields but required 82 ± 11 times more energy compared to those conventionally produced in some plant productions. Moreover, specific energy consumption increased by 17% compared to conventional cultivation for some vegetables. This information can be used to optimize energy usage, reduce costs, and promote sustainable crop production, thereby contributing to global food security and environmental sustainability.

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“…Therefore, quantum measurement systems are increasingly prevalent in fields such as agriculture and ecology. However, U PAR depends on wavelength and therefore cannot be derived directly from solar irradiance (Wang et al, 2021). Instruments specifically designed for directly measuring the light quantum flux U PAR are not widespread, and most meteorological stations lack regular observation platforms for PAR.…”

Section: Par Value Estimationmentioning

confidence: 99%

A review of research methods for accounting urban green space carbon sinks and exploration of new approaches

Dong,

Wang,

et al. 2024

Front. Environ. Sci.

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Along with urbanization and industrialization, carbon emissions have been increasing significantly, resulting in global warming. Green space has been widely accepted as a natural element in cities to directly increase carbon sinks and indirectly reduce carbon emissions. The quantification of carbon benefits generated by green space is an important topic. This paper aims to provide a comprehensive review of the methods for measuring carbon sinks of green spaces. The results indicate that existing assessment methods can accurately estimate the carbon sinks in green spaces at large scales. However, existing methods are not fully applicable to studies of urban green spaces, due to the low precision of research results. The assimilation method is the most suitable method to study the carbon sequestration efficiency of plants and can project the carbon sinks of urban green spaces at large scales through macroscopic means. Even though, the results of assimilation experiments are unstable under different weather conditions. To address existing research challenges, this paper proposes a photosynthetic rate estimation method based on the light-response curve which is an efficient method to describe the relationship between light intensity and net photosynthetic rate in studying plant physiological characteristics. The newly proposed method, through integrating net photosynthesis-light response curves and urban light intensity associated with meteorological data, has advantages of short measurement time and ensuring standardized experimental environment for result comparability. Overall, this study is important to combine meteorology and plant physiology to propose a photosynthetic rate estimation method for optimizing carbon sink measurement in urban green spaces. The method is more convenient for application for its simple experimental process and result comparability. In practice, this study provides guidance for low-carbon urban green space planning and design, and helps to promote energy conservation and emission reduction through nature-based solutions.

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A climate-based analysis of photosynthetically active radiation availability in large-scale greenhouses across China

Cited by 14 publications

References 67 publications

A genome‐wide analysis suggests pleiotropic effects of Green Revolution genes on shade avoidance in wheat

A genome‐wide analysis suggests pleiotropic effects of Green Revolution genes on shade avoidance in wheat

Assessing the Physical and Environmental Aspects of Greenhouse Cultivation: A Comprehensive Review of Conventional and Hydroponic Methods

A review of research methods for accounting urban green space carbon sinks and exploration of new approaches

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